CN102622955B - Dot-matrix VFD (Vacuum Fluorescent Display) screen protection circuit - Google Patents
Dot-matrix VFD (Vacuum Fluorescent Display) screen protection circuit Download PDFInfo
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- CN102622955B CN102622955B CN201210094402.3A CN201210094402A CN102622955B CN 102622955 B CN102622955 B CN 102622955B CN 201210094402 A CN201210094402 A CN 201210094402A CN 102622955 B CN102622955 B CN 102622955B
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201210094402.3A CN102622955B (en) | 2012-04-01 | 2012-04-01 | Dot-matrix VFD (Vacuum Fluorescent Display) screen protection circuit |
Applications Claiming Priority (1)
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CN201210094402.3A CN102622955B (en) | 2012-04-01 | 2012-04-01 | Dot-matrix VFD (Vacuum Fluorescent Display) screen protection circuit |
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CN102622955A CN102622955A (en) | 2012-08-01 |
CN102622955B true CN102622955B (en) | 2014-06-25 |
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CN201210094402.3A Active CN102622955B (en) | 2012-04-01 | 2012-04-01 | Dot-matrix VFD (Vacuum Fluorescent Display) screen protection circuit |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5596471A (en) * | 1995-05-05 | 1997-01-21 | Advanced Micro Devices, Inc. | Adjustable undervoltage trip fault interrupt circuit |
CN200983242Y (en) * | 2006-12-13 | 2007-11-28 | 上海三星真空电子器件有限公司 | A driving power circuit of vacuum fluorescence display |
CN201359838Y (en) * | 2009-01-22 | 2009-12-09 | 辉创电子科技(苏州)有限公司 | Automatic brightness regulation device of VFD display screen |
CN102263539A (en) * | 2010-05-28 | 2011-11-30 | 洛克威尔自动控制技术股份有限公司 | Variable frequency drive and methods for filter capacitor fault detection |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US7558031B2 (en) * | 2003-05-02 | 2009-07-07 | Abb Inc. | Intelligent automatic bypass for a motor control device |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5596471A (en) * | 1995-05-05 | 1997-01-21 | Advanced Micro Devices, Inc. | Adjustable undervoltage trip fault interrupt circuit |
CN200983242Y (en) * | 2006-12-13 | 2007-11-28 | 上海三星真空电子器件有限公司 | A driving power circuit of vacuum fluorescence display |
CN201359838Y (en) * | 2009-01-22 | 2009-12-09 | 辉创电子科技(苏州)有限公司 | Automatic brightness regulation device of VFD display screen |
CN102263539A (en) * | 2010-05-28 | 2011-11-30 | 洛克威尔自动控制技术股份有限公司 | Variable frequency drive and methods for filter capacitor fault detection |
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CN102622955A (en) | 2012-08-01 |
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Owner name: WUZHOU HENGSHENG ELECTRONIC TECHNOLOGY CO., LTD. G Free format text: FORMER OWNER: WUZHOU HENGSHENG ELECTRONIC TECHNOLOGY CO., LTD. GUANGZHOU YANGCHENG PRECISION ELECTRONIC CO., LTD. Effective date: 20140905 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140905 Address after: 510800 Guangzhou street, Xinhua Street, Huadu District, Guangdong, China, No. 8, Jinghu Patentee after: Guoguang Electric Co., Ltd. Patentee after: Wuzhou Hengsheng Electronic Technology Co., Ltd. Patentee after: GUANGDONG MEIJIA AUDIO DEVELOPMENT CO., LTD. Address before: 510800 Guangzhou street, Xinhua Street, Huadu District, Guangdong, China, No. 8, Jinghu Patentee before: Guoguang Electric Co., Ltd. Patentee before: Wuzhou Hengsheng Electronic Technology Co., Ltd. Patentee before: Guangzhou Yangcheng Precision Electronics Co., Ltd. |